Compile simple string

Question

Was just wondering if there are any built in functions in c++ OR c# that lets you use the compiler at runtime? Like for example if i want to translate:

!print \"         


        

Answer 1

It is possible using C#. Have a look at this Sample Project from the CodeProject.

Code Extract

private Assembly BuildAssembly(string code)
{
    Microsoft.CSharp.CSharpCodeProvider provider = new CSharpCodeProvider();
    ICodeCompiler compiler = provider.CreateCompiler();
    CompilerParameters compilerparams = new CompilerParameters();
    compilerparams.GenerateExecutable = false;
    compilerparams.GenerateInMemory = true;
    CompilerResults results = compiler.CompileAssemblyFromSource(compilerparams, code);
    if (results.Errors.HasErrors)
    {
       StringBuilder errors = new StringBuilder("Compiler Errors :\r\n");
       foreach (CompilerError error in results.Errors )
       {
            errors.AppendFormat("Line {0},{1}\t: {2}\n", error.Line, error.Column, error.ErrorText);
       }
       throw new Exception(errors.ToString());
    }
    else
    {
        return results.CompiledAssembly;
    }
}

public object ExecuteCode(string code, string namespacename, string classname, string functionname, bool isstatic, params object[] args)
{
    object returnval = null;
    Assembly asm = BuildAssembly(code);
    object instance = null;
    Type type = null;
    if (isstatic)
    {
        type = asm.GetType(namespacename + "." + classname);
    }
    else
    {
        instance = asm.CreateInstance(namespacename + "." + classname);
        type = instance.GetType();
    }
    MethodInfo method = type.GetMethod(functionname);
    returnval = method.Invoke(instance, args);
    return returnval;
}